Finding the Fourth Proportional to 243,309.25, 335,718.07 and 135,862.75
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Solution
The fourth proportional to 243,309.25, 335,718.07 and 135,862.75 is: 187,463.41
Step by Step Solution
- Step 1: Write the proportion equation
243,309.25 : 335,718.07 = 135,862.75 : x - Step 2: Convert to fraction form
243,309.25/335,718.07 = 135,862.75/x - Step 3: Cross multiply
243,309.25x = 335,718.07 × 135,862.75 - Step 4: Simplify right side
243,309.25x = 45,611,581,054.19 - Step 5: Solve for x
x = 45,611,581,054.19/243,309.25 - Step 6: Final answer
x = 187,463.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.